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wp.org search vs our merit ranking: “pdf quotes”

wp.org orders by popularity, so a plugin a host bundled onto millions of sites, or a big-brand one that's slow and mediocre, can sit at the top. Our ranking is built to answer a different question: which of these is actually worth installing. How this works →

For “pdf quotes”, we agree with wp.org on the top plugin, and our order differs from theirs on 15 of the top 20.

wp.org search ranks on

Install count (uncapped), the raw star average, freshness, and support. Popularity dominates, so the biggest install base usually wins regardless of how it got there.

We add

A cap on the install boost, volume-weighted ratings, and signals wp.org can't see: whether the install base is organic or host-pushed, and its risk of being pulled.

Ranked above its merit

PDF invoice for WP ERP shows at wp.org #5 but places #22 on merit, a gap of 17 places. Its 2K+ installs carry it up the search order; its 3.0★ average from 2 reviews, plus freshness and upkeep, place it lower on our volume-weighted scale.

Buried gem

Ninja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder places #8 on merit, 4.4★ from 1397 reviews, but shows at wp.org #23. A smaller install base keeps it further down the default search order than its quality signals alone would.

How this rank is calculated

Each plugin's merit score multiplies these inputs together: how recently it was updated, how current its "tested up to" WordPress version is, its install base (log scale, capped at 10 million), its support thread resolution rate, and a rating score. The rating score weights the star average by review volume against a sitewide prior, then scales it by the lower bound of the share of 4 and 5 star reviews. A plugin with 3.7 stars from tens of thousands of reviews can still outscore a 4.9 with a few dozen, because the small sample carries less certainty.

A health factor between 0.4 and 1.15 then adjusts that score for what wp.org's search can't see: PHP fatals or failed activations on a test install, PHP and WordPress compatibility, memory and page-speed footprint, suspicious review patterns, closure risk, and a large install base with very few reviews. Clean, adopted plugins earn a small lift.

A keyword ranking starts from wp.org's search order for the term, weighting each position by 1 divided by its place, then applies the merit correction and health factor above. Relevance to the keyword stays in the result, so the order can differ from the all-categories list on /best, which scores plugins with no search term.

Hover a row to see the main reason for its position.

merit plugin wp.org
1 Easy Invoice – Invoice Generator, PDF Quotes & Payments 600+ · 4.4★ (7) wp.org #1 2 Cart PDF for WooCommerce 1K+ · 5.0★ (26) wp.org #3 1 too low 3 Wonder PDF Embed 8K+ · 4.5★ (13) wp.org #2 1 too high 4 Calculated Fields Form – AI Form Builder for WordPress – Contact, Payment, Quote, Quiz & More 40K+ · 4.9★ (973) wp.org #11 ↓3 7 too low 5 Forminator Forms – Contact Form, Payment Form & Custom Form Builder 600K+ · 4.8★ (2144) wp.org #12 ↓1 7 too low 6 Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder 800K+ · 4.8★ (808) wp.org #18 ↓3 12 too low 7 Relevanssi – A Better Search 100K+ · 4.8★ (406) wp.org #21 ↓1 14 too low 8 Ninja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder 500K+ · 4.4★ (1397) wp.org #23 ↓2 15 too low 9 PDF Builder for WPForms 800+ · 4.0★ (8) wp.org #4 5 too high 10 Sliced Invoices – WordPress Invoice Plugin 4K+ · 4.6★ (117) wp.org #19 ↓1 9 too low 11 mPDF add-on for RTL and Unicode Support 4K+ · 5.0★ (16) wp.org #13 ↓1 2 too low 12 PDF for Elementor Forms + Drag And Drop Template Builder 1K+ · 3.9★ (11) wp.org #7 ↓1 5 too high 13 PDF for WPForms + Drag and Drop Template Builder 1K+ · 4.5★ (6) wp.org #6 ↓1 7 too high 14 YITH Request a Quote for WooCommerce 10K+ · 3.3★ (66) wp.org #15 ↑1 1 too low 15 Better Click To Share – Shareable Quote Boxes for X (Twitter) 6K+ · 4.8★ (48) wp.org #24 ↓1 9 too low 16 Quotes and Tips by BestWebSoft 1K+ · 4.5★ (11) wp.org #10 6 too high 17 Flexible PDF Invoices for WooCommerce & WordPress 6K+ · 4.4★ (37) wp.org #20 ↓1 3 too low 18 Flipa PDF Flipbook – PDF Viewer and Page Flip Book 800+ · 5.0★ (4) wp.org #8 ↓1 10 too high 19 PDF Invoice for WooCommerce + Drag and Drop Template Builder 500+ · 5.0★ (6) wp.org #14 ↓1 5 too high 20 PDF for Gravity Forms + Drag And Drop Template Builder 400+ · 5.0★ (2) wp.org #9 11 too high 21 PDF for Contact Form 7 + Drag and Drop Template Builder 500+ · 5.0★ (3) wp.org #17 ↓3 4 too high 22 PDF invoice for WP ERP 2K+ · 3.0★ (2) wp.org #5 17 too high 23 PDF for Forminator Forms + Drag and Drop Template Builder 200+ · 5.0★ (1) wp.org #16 ↑1 7 too high 24 PDF Generator for Posts & Pages – Export Any Post Type to PDF 90+ · 1.0★ (1) wp.org #22 2 too high

Merit ranking caps the install boost at 10M (wp.org leaves it uncapped), replaces the raw star average with a volume-weighted score and a Wilson lower bound, and keeps wp.org's own freshness and compatibility decays. Method from the plugin-directory source; see Meta Trac #8298. Positions are tracked daily from the first visit to a keyword, so the small arrows show movement since tracking began.